Search results for: Peter K. Gantzel

Items from 1 to 15 out of 15 results

article

Structures of the Solvated Organic-Based Ferromagnet Decamethylferrocenium Tetracyanoethenide, [FeCp* ₂ ] ^·+ [TCNE] ^·− · y RCN (R = Me, Et, n -Pr)

Joel S. Miller, Peter K. Gantzel, Arnold L. Rheingold, Michelle L. Taliaferro

Inorganic Chemistry > 2009 > 48 > 9 > 4201 - 4206

article

Disorder and Intermolecular Interactions in a Family of Tetranuclear Ni(II) Complexes Probed by High-Frequency Electron Paramagnetic Resonance

Jon Lawrence, En-Che Yang, Rachel Edwards, Marilyn M. Olmstead, more

Inorganic Chemistry > 2008 > 47 > 6 > 1965 - 1974

article

Hydrocarbation Chemistry Proceeding from Nickel Carbenes

Hongyi Hou, Peter K. Gantzel, Clifford P. Kubiak

Journal of the American Chemical Society > 2003 > 125 > 32 > 9564 - 9565

article

Efficient Synthesis of N-Aryl Nickel(II) Carbenes by Protonation of Nickel(0) Isocyanide Complexes

Hongyi Hou, Peter K. Gantzel, Clifford P. Kubiak

Organometallics > 2003 > 22 > 14 > 2817 - 2819

article

Sesquiterpenes from Omphalotus illudens

Trevor C. McMorris, A. Kashinatham, Ricardo Lira, Henrik Rundgren, more

Phytochemistry > 2002 > 61 > 4 > 395-398

Three sesquiterpenes, illudosone hemiacetal (1a), isoomphadione (2) and illudiolone (3) were isolated from the liquid culture extract of Omphalotus illudens. Their structures were elucidated by spectroscopic techniques as well as by X-ray crystallographic analysis.

article

In Search of the Elusive Open-Faced Triangulo Nickel Cluster: Insertion of Thallium(I) into a μ ₃ -I Capping Ligand

Marc J. A. Johnson, Peter K. Gantzel, Clifford P. Kubiak

Organometallics > 2002 > 21 > 18 > 3831 - 3832

article

Single-molecule magnets: Jahn–Teller isomerism and the origin of two magnetization relaxation processes in Mn12 complexes

Sheila M.J Aubin, Ziming Sun, Hilary J Eppley, Evan M Rumberger, more

Polyhedron > 2001 > 20 > 11-14 > 1139-1145

Different crystallographic forms of the single molecule magnet [Mn ₁₂ O ₁₂ (O ₂ CR) ₁₆ (H ₂ O) ₄ ] with a given R substituent have been isolated. X-ray structures are reported for two isomeric forms of the p-methylbenzoate complex, [Mn ₁₂ O ₁₂ (O ₂ CC ₆ H ₄ -p-Me) ₁₆ (H ₂ O) ₄ ]·(HO ...

article

An aromatic hydrocarbon π-system with a 42 ^o dihedral twist: X-ray crystal structure of 1,3-bis(trichloroacetyl)homoazulene

Lawrence T. Scott, Chris A. Sumpter, Peter K. Gantzel, Emily Maverick, more

Tetrahedron > 2001 > 57 > 17 > 3795-3798

Red crystals of 1,3-bis(trichloroacetyl)homoazulene (2), prepared by Friedel-Crafts acylation of homoazulene (1), have been examined by X-ray diffraction. The 10 carbon-carbon bonds that make up the perimeter π-system of 2 average 1.402Å in length, with an average deviation (absolute value) from this length of only 0.016Å. Thus, like benzene, this nonbenzenoid π-system exhibits bond length convergence...

article

Single-Molecule Magnets: Jahn−Teller Isomerism and the Origin of Two Magnetization Relaxation Processes in Mn ₁₂ Complexes

Sheila M. J. Aubin, Ziming Sun, Hilary J. Eppley, Evan M. Rumberger, more

Inorganic Chemistry > 2001 > 40 > 9 > 2127 - 2146

article

Photopolymerization of Liquid Carbon Disulfide Produces Nanoscale Polythiene Films

Peter B. Zmolek, Honglae Sohn, Peter K. Gantzel, William C. Trogler

Journal of the American Chemical Society > 2001 > 123 > 6 > 1199 - 1207

article

Zigzag chain of hepta-coordinate manganese complexes

Sun Ziming, Peter K. Gantzel, David N. Hendrickson

Polyhedron > 1998 > 17 > 9 > 1511-1516

The preparation of the polymeric chain complex, {[Mn(bic)(H ₂ O)] ₂ 2Br 2H ₂ O)} _n (2) is reported. Characterization is made by single X-ray structure, IR and magnetochemistry data. Each seven-coordinate manganese ion has a slightly distorted pentagonal bipyramidal coordination geometry. Bicine is a hexadentate ligand using one nitrogen, three oxygen and one μ...

article

An Acetal Derivative of Illudin S with Improved Antitumor Activity

Trevor C. McMorris, Yu Jian, Peter K. Gantzel, Leita A. Estes, more

Tetrahedron Letters > 1997 > 38 > 10 > 1697-1698

Methylene acetal of an epimer of illudin S (5) was obtained by treating illudin S with a large excess of paraformaldehyde in 1N H ₂ SO ₄ solution. X-ray crystallographic analysis showed that the configuration at the allylic carbon has been inverted. This acetal was found to be less toxic and showed a higher therapeutic index than illudin S.

article

One-dimensional polymeric bicinate manganese complex

Sun Ziming, Peter K. Gantzel, David N. Hendrickson

Polyhedron > 1997 > 16 > 19 > 3267-3271

The synthesis, X-ray structure and magnetochemical properties of the one-dimensional polymeric bicinate (bic ^- ) manganese complex {[Mn(bic)Cl] ₂ 2(H ₂ O)} _n are reported. Each manganese ion has distorted octahedral coordination geometry. Bicine is a pentadentate ligand using one nitrogen, and four oxygen atoms to coordinate to the Mn ^I ^I ion. The two...

article

Bis(triisopropylsilyl)-o-phenylenediamido complexes of tantalum. X-ray structure of (η ⁵ -C ₅ Me ₅ )[o-C ₆ H ₄ (NSiPr ⁱ ₃ ) ₂ ]TaCl ₂

Koichiro Aoyagi, Peter K. Gantzel, T. Don Tilley

Polyhedron > 1996 > 15 > 23 > 4299-4302

The new mixed-ligand complexes Cp ^* [o-C ₆ H ₄ (NSiPr ⁱ ₃ ) ₂ ]TaCl ₂ (1) and Cp ^* [o-C ₆ H ₄ (NSiPr ⁱ ₃ ) ₂ ]TaMe ₂ (2) have been prepared and characterized. In complex 1 the diamide ligand is coordinated in an η ⁴ -fashion via donation of electron density from the phenylene ring to the...

article

Palladium complexes present during the catalytic reduction of NO to N ₂ O

Joseph H. MacNeil, Peter K. Gantzel, William C. Trogler

Inorganica Chimica Acta > 1995 > 240 > 1-2 > 299-304

The identity of a palladium chloronitrosyl complex, active in the catalytic reduction of NO to N ₂ O, has been examined in aqueous and non-aqueous media. Stoichiometry experiments for its formation from [PdCl ₄ ] ² ^- show the presence of one bound nitrosyl group per palladium and the requirement of a one-electron reductant, provided by CuCl. Work in non-aqueous solvents...

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